事务嵌套

# 在同一个类中调用带有@Transactional注解的方法如何合并一个事务？

举例：

@Service
public class A{
    
    public void action(){
        dosome();
    }
    
    @Transactional
    public void dosome(){
        doa.insert(new Object());
    }
}

1
2
3
4
5
6
7
8
9
10
11
12

推荐：Spring AOP，AspectJ 对方法进行切面

依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.9.5</version>
</dependency>

1
2
3
4
5
6
7
8
9
10

启动类

@SpringBootApplication
@EnableAspectJAutoProxy(exposeProxy = true)
public class DonngPartsApplication {

	public static void main(String[] args) {
		SpringApplication.run(DonngPartsApplication.class, args);
	}

}

1
2
3
4
5
6
7
8
9

修改代码

@Service
public class A{
    
    public void action(){
        ((A) AopContext.currentProxy()).dosome();
    }
    
    @Transactional
    public void dosome(){
        doa.insert(new Object());
    }
}

1
2
3
4
5
6
7
8
9
10
11
12

← IOC篇事件监听器→